Hundreds of tourists were evacuated from Paris’ Eiffel Tower on Friday afternoon in response to a bomb alert, but it was found to be a scare and the tower was reopened two hours later, police told Reuters.

Police sent a bomb disposal unit to inspect the monument after an anonymous phone call triggered the alert around 2 p.m., but the team found nothing suspicious and the tower was reopened, a police official said.

Built in 1889, the 324-metre-high (1,062-foot) iron tower sees some 7 million visitors each year and up to 30,000 a day in the peak summer season.